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PURE FOOD IN THE HOME 



SECTION -THROUGH WALI/ 





while kept in cold storage from six months to two years or 

 more. But we must remember that intense cold, while it 

 prevents the growth of bacteria, does not kill them, and 



cold storage foods, if 

 placed in favorable 

 conditions for the 

 growth of germs, will 

 soon spoil. On the 

 other hand, heat if 

 continued long 

 enough kills bacte- 

 ria; and no germs 

 will grow in foods 

 thus heated pro- 

 vided they are kept 

 from air which con- 

 tains germs. With a 

 knowledge of these 

 facts we can better 

 understand the prin- 

 ciples underlying the 



use of the ice box, 

 cold storage, and 

 canning. 



Value of the re- 

 frigerator in the 

 home. We have 



Circulation of air in the refrigerator. What foods are 

 placed below the ice chamber ? Why ? 



seen that warm, moist air helps germs to grow, and decay 

 to take place. The refrigerator prevents this decay by sur- 

 rounding foods with dry, cold air. Left-overs which other- 

 wise would be wasted are thus saved for use, and foods 

 and drinks are made more palatable. 



